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Korean Society of Photoscience (한국광과학회)
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Fluorescence Behavior Associated with a Possible Intercolumnar Charge-transfer Interaction in the Crystalline State of a Dyad Consisting of Mesitylene and 1,4-Dicyano-2-methylnaphthalene Subunits

  • Ohta, Eisuke (Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University) ;
  • Kobayashi, Hitoshi (Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University) ;
  • Sakai, Atsushi (Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University) ;
  • Matsui, Yasunori (Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University) ;
  • Sato, Hiroyasu (Rigaku, Akishima) ;
  • Ikeda, Hiroshi (Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University)
  • Received : 2015.05.22
  • Accepted : 2015.06.27
  • Published : 2015.06.30
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Abstract

Fluorescence (FL) properties of a novel donor-acceptor dyad, comprised of mesitylene and 1,4-dicyano-2-methylnaphthalene (DCMN) subunits connected by an ether linkage, were elucidated. The dyad in cyclohexane exhibits FL arising from an intramolecular exciplex. In the crystalline state, the dyad does not emit light from intra- and inter-molecular exciplexes but rather displays FL that is nearly equivalent to that of 2-methoxymethyl-substituted DCMN. However, the emission spectrum of the crystalline dyad contains a shoulder in the long wavelength region, suggesting that weak intercolumnar charge-transfer interactions take place between columns consisting of the mesitylene and DCMN subunits.

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References

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